And in turn, my plan?
What must I achieve in that role?
Explicitly given in Higher Comd's orders
Enabling tasks, tasks not assigned but requiring resources
Linked to Main Effort, basis of Mission Statement
Things you MUST do, or cannot change
Things you MUST NOT do
Higher orders, time & space, resources, risk, sustainment, RoE, PMESII, etc.
If not, ensure your CoAs do not violate the limitations
Main effort, use of reserves, phasing, etc.
But failing to adapt might

Enough info to guide subordinates